Propylene resin composition

Details Propylene resin composition Propylene resin composition

1998-01-16

2000-03-07

Mullis, Jeffrey C.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C08L 2314

Patent

active

060341777

ABSTRACT:
There is provided a propylene resin composition consisting essentially of the following components (a) and (b):
component (a): 100 parts by weight of a propylene-ethylene block copolymer composed of 60 to 80% by weight of crystalline polypropylene homopolymer moiety (unit A moiety), and 20 to 40% by weight of ethylene-propylene random copolymer moiety (unit B moiety) having an ethylene content of 30 to 60% by weight and a weight-average molecular weight (Mw) of 200,000 to 400,000, the melt flow rate of the component (a) being from 25 to 100g/10 min; and
component (b): 1 to 60 parts by weight of an ethylene-.alpha.-olefin copolymer rubber containing 20 to 50% by weight of an .alpha.-olefin having 3 to 16 carbon atoms.

REFERENCES:
patent: 4621114 (1986-11-01), Watanabe
patent: 5532309 (1996-07-01), Fukui et al.
patent: 5624991 (1997-04-01), Harada et al.
patent: 5777020 (1998-07-01), Nagai et al.
patent: 5829804 (1998-11-01), Sacki et al.
patent: 5889099 (1999-03-01), Nagi et al.
patent: 5889100 (1999-03-01), Saki et al.

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